While trapped on a planet with Zho'Kaan, Commander Tucker sent a Starfleet carrier wave to Enterprise from an Arkoniantransceiver to help the ship locate him and Zho'Kaan before both of them were killed by extreme heat. (ENT: "Dawn")

Later on, La Forge discovered that the D'Arsay archive was using the Enterprise's sensor beam as a carrier wave to transmit information about their culture to the ship's computers and replicators. (TNG: "Masks")

Later that year, Data detected a subspace carrier wave heading for the Enterprise-D with the same signature as Bok's transporter. (TNG: "Bloodlines")

Later that year, Lieutenant Tuvok authenticated a signal coming from a Federation beacon as being a Starfleet frequency, since it corresponded to a standard Federation carrier wave. (VOY: "Maneuvers")

While trying to contact a duplicate Voyager created by a subspace divergence field, Kathryn Janeway suggested to B'Elanna Torres that the two ships could recalibrate their carrier wave to match phase variants so they could communicate with each other. (VOY: "Deadlock")

Later that year, Captain Janeway attempted to contact a missing Harry Kim by trying to activate his combadge using a carrier wave. Janeway asked Lieutenant Commander Tuvok to have the carrier wave match a Borg interlink frequency so the transmission would not be detected by a Borg cube facing off Voyager. (VOY: "Collective")